Orthodontic harness



FIG. 1 is a perspective view of an orthodontic harness showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a view of the right side thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an orthodontic harness, substantially as shown and described. 